Concurrent `PurgeOrchestrationInstanceHistoryAsync` calls

[FarhadJabiyev]

We should call PurgeOrchestrationInstanceHistoryAsync method to delete orchestrations started more than 24 hours ago. We want to make that call from BackgroundService in .NET core. In documentation nothing mentioned if we can do that call from multiple services containing that BackgroundService or not. Could you please let me know if it safe to make that call concurrently with same arguments or not?

[sebastianburckhardt]

Yes, the call is safe to make concurrently and/or repeatedly with the same arguments.